Welcome to InfinitiScene.com - Home for Infiniti QX and Q enthusiasts!
You are currently viewing our forum as a guest, which gives you limited access to the forums. Why not register on our forums and gain the extra benefits that our regular members enjoy?

  • Enthusiast Owned and Operated!
  • Registraion is free.
  • You will be able to post, message, and interact with other members.
  • Our forum is full of friendly, knowledgeable members and staff.
  • Plenty of money saving opportunities from write-ups to maintenance help.
  • Create a garage and show off your ride and specs.
  • Opportunity for ad-free viewing.
  • Plus much more!

Registration is fast, free, and easy, so stop being just a guest and become one of our newly registered members today!

FX45 Blown Engine

Discussion in 'FX (03-08) - Engine & Drivetrain' started by porkandbeans, May 22, 2017.

  1. porkandbeans

    porkandbeans iS Dutcher iS VIP

    6,255
    189
    Inland Empire, CA
    2003 FX45 AWSM
    Garages:
    2
    It happened.
    Over 220,000 miles.
    I was planning an engine rebuild due to the burning oil issue which became widely assumed to a worn seals on a tired engine. I still don't know what happened in the last moments, but something broke. Seems like the bottom end, so I'd put my bet on a busted rod. But what caused that?... I don't know. Then whatever chewed up inside caused enough punching pressure to crack the oil pan.
    I doubt this block can be rebuilt now, so I'm engine shopping. New and used.
    I'd really really like to see the inside of this motor. But depending on which route I go, I very well may never get the chance.

    1tow1.png 2tow2.jpg 3crap.jpg
     

     *Registered members do not see this ad, register today!

  2. OP
    OP
    porkandbeans

    porkandbeans iS Dutcher iS VIP

    6,255
    189
    Inland Empire, CA
    2003 FX45 AWSM
    Garages:
    2
    5shit.jpg
    The oil pan crack is pictured below the wire loom, extending from the bottom side of that protruding boss and follows the line of seeming oil.
     
  3. gto

    gto Track Ready Moderator

    16,432
    472
    Los Angeles, CA
    05 FX35 RWD
    Garages:
    1
    Poor car. Hope you get back on the road soon
     
  4. jumbosrule

    jumbosrule Premium Member Premium

    2,834
    57
    Redondo Beach, CA
    2003 FX35T
    Brad
    Garages:
    2
    And SERIOUSLY, if you don't get back on the road... I might want that Red body. Maybe we can work something out.
     
  5. DatMan

    DatMan Premium Member Premium

    415
    69
    Ottawa, ON
    2007 FX35 AWD
    Dat
    He just wants you for your body... ;)
     
    dubb likes this.
  6. la_fx35

    la_fx35 Staff Moderator

    20,135
    1,111
    Chicago
    2003 FX45
    Andy
    Garages:
    1
    Any sign of any noise before it happens?
     
  7. OP
    OP
    porkandbeans

    porkandbeans iS Dutcher iS VIP

    6,255
    189
    Inland Empire, CA
    2003 FX45 AWSM
    Garages:
    2
    Thanks.
    I'll go for "back on the road"... not sure about how "soon".
     
  8. OP
    OP
    porkandbeans

    porkandbeans iS Dutcher iS VIP

    6,255
    189
    Inland Empire, CA
    2003 FX45 AWSM
    Garages:
    2
    haha! You got it Brad. You'll be first to know if it goes that way.
    I kinda like the thought of that. Your 3rd turbo project FX...
    I don't want to give up red, but hmmmm, some kind of trade for Silver?
     
  9. OP
    OP
    porkandbeans

    porkandbeans iS Dutcher iS VIP

    6,255
    189
    Inland Empire, CA
    2003 FX45 AWSM
    Garages:
    2
    It happens. From girls though. I've just learned to get used to it. :wideyed:
     
  10. OP
    OP
    porkandbeans

    porkandbeans iS Dutcher iS VIP

    6,255
    189
    Inland Empire, CA
    2003 FX45 AWSM
    Garages:
    2
    No. No signs as far as symptoms leading up to it, or even a small bang before a bigger boom.
    Cruising casually as freeway speed and "crunch bang grind snap clunk". It was loud from inside the car and unmistakably bad sounding. Since I've known of my Chronic Catalytic Internal Corrosion for some time, I hoped that my exhaust had broke apart and fallen forward, lawn darting into the roadway bouncing and clanging every few inches of buttpuckering travel. Not the case. The undercarriage was visually clean and "almost" idled okay. Of course that was over freeway noise and the echoing of my load exhaust. It would very poorly run at this point and sound like a shadetree mechanic had lost a socket or two down the spark plug wells. The drive train felt like a pepper grinder.

    I should be able to load a soundclip of the exhaust from a few hundred miles ago. I doubt any true engine noise can be picked up, but maybe a keen ear out there can detect a sticky valve or something. Who knows.
     
  11. OP
    OP
    porkandbeans

    porkandbeans iS Dutcher iS VIP

    6,255
    189
    Inland Empire, CA
    2003 FX45 AWSM
    Garages:
    2
    I've been doing my shopping and narrowing down my engine options. (in my previous post I mentioned "new and used" choices. What I meant by this was remanufactured with zero miles, or used with whatever miles from the salvaged donor.)
    Core charge is looking to be standard around $700. They'll very likely inspect my core return and deduct for any parts not resaleable. Besides the oil pan for sure, the crank and block and whatever else may fall into this category. So, it makes me wonder if I want to keep the broken motor. Are there any easy parts on there that I can resell? Is there much of a market for the heads?
     
  12. jumbosrule

    jumbosrule Premium Member Premium

    2,834
    57
    Redondo Beach, CA
    2003 FX35T
    Brad
    Garages:
    2
    My opinion is that keeping the parts will not help that much in the long run, but they will certainly take up space you could otherwise use. I haven't heard of much of a market for these motors because they arent found anywhere else, are they?

    If you really need every last penny squeezed out of what you have, parting out is long and tedious. If you can work out a credit deal with whoever does your motor replacement/rebuild, you might be able to negotiate a few hundred off the bill if you offer the dead motor up for parts.

    On this and other builds, I've done it both ways and found that keeping the motor isnt really useful unless you have the space and the knowledge it is likely you will be doing this again someday. FX45 owners don't tend to dive into the motor too often, from what I have seen!
     
  13. OP
    OP
    porkandbeans

    porkandbeans iS Dutcher iS VIP

    6,255
    189
    Inland Empire, CA
    2003 FX45 AWSM
    Garages:
    2
    The assumption is that the motor is not rebuildable. The main reason I would even want to hang onto the engine is to keep the nostalgic "heart" of the car. The real question is whether (or which) key components are scrap. The core return gets me $700 minus what parts don't pass inspection as reusable. (I'd guess at an average of a couple hundred bucks per key part.) I know the pan is bad and then maybe the block and maybe the crank. So let's say I only got $200-$300 for the core return. That's when I almost want to say "why bother" and keep the dead motor. Of course, I wouldn't find out until the motor is already returned.
    And then if I got full return value I'd be kicking myself because I should've had it rebuilt instead of swapped.
     
  14. MTN FX

    MTN FX Mountain Man Premium

    4,430
    125
    Big Bear City,Ca.
    2004 FX35 AWD
    John Green
    Garages:
    2
    Dang Pork just saw this thread that sucks hope you get her back up and running soon.
    At least you have a pretty sweet back up.;)
     
    porkandbeans likes this.
  15. PELON

    PELON Member

    98
    4
    riverside ca.
    1997 VR4
    Has to be rotating motor to get core (typically). Side note: can't believe so many of you guys still have FX.☺
     
    MTN FX likes this.
  16. arcticpt

    arcticpt Member

    2
    1
    Lantana, Florida
    2004 FX 45
    Eero
    You should ask somebody, you know, to open that engine, and find out, what happened!!! Problem is, you have to "drop" the engine out of the car, and after that open bottom/ oilpan, even before you can open heads! Mine did not blow up "yet" , only 128 000 miles, started to smoke a lot!!! and drink lots of oil too, like a quart per week!!! white smoke, so I know, there is blown head gasket too, maybe piston rings??, bad valve, not really making noises,,,.... so I did rent a garage, got engine already out, opening it soon, will make it 5 litre engine, ordered performance camshafts, got pistons already, will put headers on, new cold intake and "my own plenum", we are looking for about 450-500 HP, after I am done, also got newer , 4 piston brake calipers, and lowering spring kit!! Front bumpercover will be changed to lower/ more aggressive look =)0, you can buy it, it is meant for G35, you have to modify it!! So, my advise for you, keep the car, make a deal with somebody, you can trust??/ to open it, take it out, not easy, you have to know, what you are doing, need some special tools too!! Front driveshaft goes thru the oilpan !!! Then, after engine is opened, make your decision, you can buy brand new short block about $2000, and then it is like new again! Make sure, you change your oil on time, always, and you'll be a happy camper ! I love this car, and mine will be a monster !!! Pictures/ story later here, after I am done =), Good Luck !!!
     
    Mendezinc likes this.
  17. Mendezinc

    Mendezinc Member

    3
    1
    Outskirts of LA
    2010 FX35
    Al
    Hey AR,
    Could you please keep us posted on your engine build, Photos (Videos if you could), part numbers of the aftermarket parts and brands. I'm still new to this vehicle, but I'm hooked. Picked up a used one late last year and love it. If I can pick up a New one great but if not, I'd like to know what to expect.

    Can't wait for the updates guys . . . may all go well.


     
  18. DatMan

    DatMan Premium Member Premium

    415
    69
    Ottawa, ON
    2007 FX35 AWD
    Dat
    BTW, if you're gonna go that far with the engine, you should get coilovers instead of springs... AND you might want to invest in bracing, like an STB at the very least... GTSPEC used to make a full brace kit for the FX... Looks like you have starting and stopping figured out... But you might wanna turn and be able to go over imperfect roads too... ;)
     
  19. toy4x

    toy4x Premium Member Premium

    2,366
    28
    Hesperia, CA
    04 FX35
    Andrew
    Garages:
    1
    Dang... Poor FX... sorry Pork! Much easier for us 35 guys when the engine goes. You 45 guys are screwed as there's no other infiniti that uses that engine.

    Keep us updated.

    Sent from my SM-G935V
     
  20. OP
    OP
    porkandbeans

    porkandbeans iS Dutcher iS VIP

    6,255
    189
    Inland Empire, CA
    2003 FX45 AWSM
    Garages:
    2
    Thanks Andrew. Engine options are slim. (and honestly, that has been a tiny bit part what has been in my mind when when pondering a FX50)
    My options are a used salvage motor with high miles, a zero-mile rebuilt engine.
    A couple months ago, the plan was to have my same good(enough) running engine rebuilt. That would have been the best option by faaaar!
    But... my new exhaust manifolds are in transit, the engine will be ordered, and the transplant in my sights.
     
    DatMan likes this.